CN114470295B - 一种载药水凝胶复合织物用于创伤敷料的制备方法 - Google Patents
一种载药水凝胶复合织物用于创伤敷料的制备方法 Download PDFInfo
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Abstract
本发明公开了一种载药水凝胶复合织物用于创伤敷料的制备方法,包括如下步骤:步骤一、将明胶、结冷胶、聚乙烯醇和蒸馏水加入一个真空搅拌机中搅拌25‑30分钟,使物料在冷水中溶胀,然后加热升温至90℃‑95℃,再搅拌120‑150分钟,生成混合物质A;步骤二、将海藻酸钠、转化生长因子TGF‑β和蒸馏水加入一个真空搅拌机中先以60r/min‑120r/min搅拌10‑15分钟,然后再以200r/min‑300r/min搅拌15‑20分钟,生成混合物质B;步骤三、将混合物质B加入容纳混合物质A的真空搅拌机中,与物质A一起混合,先以300r/min‑500r/min搅拌2‑5分钟,然后再以50r/min‑100r/min搅拌10‑15分钟,混合均匀后对溶液进行加热至50℃—60℃,即生成了海藻酸钠水凝胶;它可以实现对伤口的热敷,使得水凝胶的药效可以更好的发挥,进而利用热敷来加快伤口愈合。
Description
技术领域
本发明涉及功能性医用敷料技术领域,更具体地说,涉及一种载药水凝胶复合织物用于创伤敷料的制备方法。
背景技术
伤口愈合是一个极其复杂的生理过程,患者的身体素质是决定伤口愈合的内因,但医用敷料的作用更不可忽视。医用敷料是一类很重要的医用纺织品,随着科技的进步以及医疗领域的各种需求,新型的具有一定功能的医用敷料越来越受到关注。功能性医用敷料可以针对伤口的实际情况,为伤口的愈合提供特殊的功能。
伤口处理的前期一般都是使用冷敷进行消肿止血,但是伤后需要愈合的阶段是需要热敷的手段来加快组织血管扩张,血流量增加,营养物质和氧供应增加,伤口再生的原料增加,进而加快伤口愈合。
然而,现阶段的很多创伤敷料并不能对伤口提供热敷的功效,并且复合织物各结构层之间没有缓冲,不利于缓冲伤口所受到的外界压力,使得伤口愈合缓慢。
发明内容
1.要解决的技术问题
针对现有技术中存在的问题,本发明的目的在于提供一种载药水凝胶复合织物用于创伤敷料的制备方法,它可以实现对伤口的热敷,使得水凝胶的药效可以更好的发挥,同时利用热敷来加快伤口愈合,并利用3D缓冲织物来降低伤口受到的外界压力,使得伤口愈合更加迅速。
2.技术方案
为解决上述问题,本发明采用如下的技术方案。
一种载药水凝胶复合织物用于创伤敷料的制备方法,包括如下步骤:
步骤一、将明胶、结冷胶、聚乙烯醇和蒸馏水加入一个真空搅拌机中搅拌25-30分钟,使物料在冷水中溶胀,然后加热升温至90℃-95℃,再搅拌120-150分钟,生成混合物质A;
步骤二、将海藻酸钠、转化生长因子TGF-β和蒸馏水加入一个真空搅拌机中先以60r/min-120r/min搅拌10-15分钟,然后再以200r/min-300r/min搅拌15-20分钟,生成混合物质B;
步骤三、将混合物质B加入容纳混合物质A的真空搅拌机中,与物质A一起混合,先以300r/min-500r/min搅拌2-5分钟,然后再以50r/min-100r/min搅拌10-15分钟,混合均匀后对溶液进行加热至50℃—60℃,即生成了海藻酸钠水凝胶;
步骤四、将步骤三中的海藻酸钠水凝胶倒入模具中,并将裁剪好的复合织物放入该模具中;
步骤五、将步骤四中的模具放置在-10℃的环境下冷冻1-2h,然后进行真空冷冻干燥,最后进行烘干,即可得到敷料。
进一步的,所述步骤四中的复合织物由上至下由三部分组成,依次是外表层、3D缓冲层和亲肤层,所述3D缓冲层内部填充有水凝胶层,所述水凝胶层顶面与所述外表层底面之间还设置有空气层,所述外表层顶面还设置有加热层。
进一步的,所述外表层为编链组织形成的针织物,所述外表层编链组织的编链纱为疏水性纤维,所述疏水性纤维为涤纶、锦纶、氨纶、丙纶或氯纶其中的一种。
进一步的,所述亲肤层为打孔无纺布材质制成,所述打孔无纺布的材料为聚乳酸、聚丙烯、聚己内酯、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚对苯二甲酸丙二醇酯、聚乙烯-醋酸乙烯共聚物、聚烯烃共聚物或热酸性弹性体Vistamaxx中的一种或两种以上,所述打孔无纺布的孔径为0.5~1mm,具有均匀分散的圆形、菱形、正六边形或十字形孔。
进一步的,所述3D缓冲层为亲水纤维和聚酯纤维沿编织方向呈S型对称间隔循环阵列编织而成,所述亲水纤维为蚕丝、羊毛、兔毛、驼毛或棉其中的一种。
进一步的,所述水凝胶层即为所述步骤三中的海藻酸钠水凝胶。
进一步的,所述海藻酸钠水凝胶的质量百分比如下:明胶0.1%-10%、结冷胶0.1%-10%、海藻酸钠0.1%-10%、聚乙烯醇1%-20%、转化生长因子TGF-β0.01%-0.05%,其余为蒸馏水。
进一步的,所述加热层由内至外依次为发热填料、无纺布包裹层、顶密封贴层,所述发热填料为铁粉、活性炭、氯化钠以及蛭石的混合物质。
进一步的,所述加热层与所述外表层顶面之间通过后期贴附的方式相连接。
进一步的,所述步骤一、步骤二以及步骤三中的真空搅拌机的搅拌方式均采用磁力搅拌。
3.有益效果
相比于现有技术,本发明的优点在于:
(1)本方案设置有加热层,可在打开包装张贴该装置时,撕开加热层顶面的顶密封贴层,进而使得氧气可进入到加热层内部与铁粉进行氧化反应,产生热量,进而可对伤口进行热敷,提高伤口对水凝胶药效的吸收效率,进而可提高伤口的愈合效率。
(2)本方案设置有外表层、3D缓冲层和亲肤层相配合,形成3D弹性缓冲空间,可在外界压力接触该装置时对其进行缓冲,进而降低对伤口造成的压迫和损伤,从而提高伤口的愈合效率,提高该装置的使用可靠性和有效性。
附图说明
图1为本发明的敷料结构示意图;
图2为本发明的复合织物结构示意图;
图3为本发明的水凝胶层结构示意图;
图4为本发明的加热层结构示意图。
图中标号说明:
1、外表层;2、亲肤层;3、3D缓冲层;4、水凝胶层;5、空气层;6、加热层。
具体实施方式
下面将结合本发明实施例中的附图,对本发明实施例中的技术方案进行清楚、完整地描述;显然,所描述的实施例仅仅是本发明一部分实施例,而不是全部的实施例,基于本发明中的实施例,本领域普通技术人员在没有做出创造性劳动前提下所获得的所有其他实施例,都属于本发明保护的范围。
实施例1:
请参阅图1-4,一种载药水凝胶复合织物用于创伤敷料的制备方法,包括如下步骤:
步骤一、将明胶、结冷胶、聚乙烯醇和蒸馏水加入一个真空搅拌机中搅拌30分钟,使物料在冷水中溶胀,然后加热升温至90℃,再搅拌120分钟,生成混合物质A;
步骤二、将海藻酸钠、转化生长因子TGF-β和蒸馏水加入一个真空搅拌机中先以100r/min搅拌12分钟,然后再以260r/min搅拌18分钟,生成混合物质B;
步骤三、将混合物质B加入容纳混合物质A的真空搅拌机中,与物质A一起混合,先以400r/min搅拌3分钟,然后再以80r/min搅拌13分钟,混合均匀后对溶液进行加热至55℃,即生成了海藻酸钠水凝胶;
步骤四、将步骤三中的海藻酸钠水凝胶倒入模具中,并将裁剪好的复合织物放入该模具中;
步骤五、将步骤四中的模具放置在-10℃的环境下冷冻1.5h,然后进行真空冷冻干燥,最后进行烘干,即可得到敷料。
参阅图1,其中,步骤四中的复合织物由上至下由三部分组成,依次是外表层1、3D缓冲层3和亲肤层2,3D缓冲层3内部填充有水凝胶层4,水凝胶层4顶面与外表层1底面之间还设置有空气层5,外表层1顶面还设置有加热层6。
参阅图2,外表层1为编链组织形成的针织物,外表层1编链组织的编链纱为涤纶。
参阅图2,亲肤层2为打孔无纺布材质制成,打孔无纺布的材料为聚乳酸,打孔无纺布的孔径为0.5mm,且为圆形孔。
参阅图2,3D缓冲层3为蚕丝纤维和聚酯纤维沿编织方向呈S型对称间隔循环阵列编织而成。
参阅图3,水凝胶层4即为海藻酸钠水凝胶。
参阅图3,海藻酸钠水凝胶的质量百分比如下:明胶5%、结冷胶5%、海藻酸钠5%、聚乙烯醇10%、转化生长因子TGF-β0.025%,其余为蒸馏水。
参阅图4,加热层6由内至外依次为发热填料、无纺布包裹层、顶密封贴层,发热填料为铁粉、活性炭、氯化钠以及蛭石的混合物质,可在打开包装张贴该装置时,通过撕开加热层6顶面的顶密封贴层,使得氧气可进入到加热层6内部与铁粉进行氧化反应,产生热量,进而可对伤口进行热敷,提高伤口对水凝胶药效的吸收效率,进而可提高伤口的愈合效率。
参阅图1,加热层6与外表层1顶面之间通过后期贴附的方式相连接。
参阅图1,步骤一、步骤二以及步骤三中的真空搅拌机的搅拌方式均采用磁力搅拌,可降低对原料的损伤。
实施例2:
本实施例中海藻酸钠水凝胶的质量百分比如下:明胶10%、结冷胶10%、海藻酸钠10%、聚乙烯醇20%、转化生长因子TGF-β0.05%,其余为蒸馏水。
敷料的制备方法包括以下步骤:
步骤一、将明胶、结冷胶、聚乙烯醇和蒸馏水加入一个真空搅拌机中搅拌25分钟,使物料在冷水中溶胀,然后加热升温至95℃,再搅拌150分钟,生成混合物质A;
步骤二、将海藻酸钠、转化生长因子TGF-β和蒸馏水加入一个真空搅拌机中先以120r/min搅拌15分钟,然后再以300r/min搅拌20分钟,生成混合物质B;
步骤三、将混合物质B加入容纳混合物质A的真空搅拌机中,与物质A一起混合,先以500r/min搅拌5分钟,然后再以100r/min搅拌15分钟,混合均匀后对溶液进行加热至60℃,即生成了海藻酸钠水凝胶;
步骤四、将步骤三中的海藻酸钠水凝胶倒入模具中,并将裁剪好的复合织物放入该模具中;
步骤五、将步骤四中的模具放置在-10℃的环境下冷冻2h,然后进行真空冷冻干燥,最后进行烘干,即可得到敷料。
实施例3:
本实施例中海藻酸钠水凝胶的质量百分比如下:明胶1%、结冷胶1%、海藻酸钠5%、聚乙烯醇1%、转化生长因子TGF-β0.01%,其余为蒸馏水。
敷料的制备方法包括以下步骤:
步骤一、将明胶、结冷胶、聚乙烯醇和蒸馏水加入一个真空搅拌机中搅拌25分钟,使物料在冷水中溶胀,然后加热升温至90℃,再搅拌120分钟,生成混合物质A;
步骤二、将海藻酸钠、转化生长因子TGF-β和蒸馏水加入一个真空搅拌机中先以60r/min搅拌10分钟,然后再以200r/min搅拌20分钟,生成混合物质B;
步骤三、将混合物质B加入容纳混合物质A的真空搅拌机中,与物质A一起混合,先以300r/min搅拌5分钟,然后再以50r/min搅拌15分钟,混合均匀后对溶液进行加热至50℃,即生成了海藻酸钠水凝胶;
步骤四、将步骤三中的海藻酸钠水凝胶倒入模具中,并将裁剪好的复合织物放入该模具中;
步骤五、将步骤四中的模具放置在-10℃的环境下冷冻2h,然后进行真空冷冻干燥,最后进行烘干,即可得到敷料。
在使用时:当选取海藻酸钠水凝胶的质量百分比:明胶5%、结冷胶5%、海藻酸钠5%、聚乙烯醇10%、转化生长因子TGF-β0.025%,其余为蒸馏水为最佳配比,并选取实施例1中的制备步骤得到的敷料效果最好。
以上所述,仅为本发明较佳的具体实施方式;但本发明的保护范围并不局限于此。任何熟悉本技术领域的技术人员在本发明揭露的技术范围内,根据本发明的技术方案及其改进构思加以等同替换或改变,都应涵盖在本发明的保护范围内。
Claims (8)
1.一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于,包括如下步骤:
步骤一、将明胶、结冷胶、聚乙烯醇和蒸馏水加入一个真空搅拌机中搅拌25-30分钟,使物料在冷水中溶胀,然后加热升温至90℃-95℃,再搅拌120-150分钟,生成混合物质A;
步骤二、将海藻酸钠、转化生长因子TGF-β和蒸馏水加入一个真空搅拌机中先以60r/min-120r/min搅拌10-15分钟,然后再以200r/min-300r/min搅拌15-20分钟,生成混合物质B;
步骤三、将混合物质B加入容纳混合物质A的真空搅拌机中,与物质A一起混合,先以300r/min-500r/min搅拌2-5分钟,然后再以50r/min-100r/min搅拌10-15分钟,混合均匀后对溶液进行加热至50℃—60℃,即生成了海藻酸钠水凝胶;
步骤四、将步骤三中的海藻酸钠水凝胶倒入模具中,并将裁剪好的复合织物放入该模具中,获得载药水凝胶结构;
所述载药水凝胶复合织物由上至下由三部分组成,依次是外表层(1)、3D缓冲层(3)和亲肤层(2),所述3D缓冲层(3)内部填充有水凝胶层(4),所述水凝胶层(4)顶面与所述外表层(1)底面之间还设置有空气层(5),所述外表层(1)顶面还设置有加热层(6);
所述加热层(6)由内至外依次为发热填料、无纺布包裹层、顶密封贴层,所述发热填料为铁粉、活性炭、氯化钠以及蛭石的混合物质;
步骤五、将步骤四中的模具放置在-10℃的环境下冷冻1-2h,然后进行真空冷冻干燥,最后进行烘干,即可得到敷料。
2.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述外表层(1)为编链组织形成的针织物,所述外表层(1)编链组织的编链纱为疏水性纤维,所述疏水性纤维为涤纶、锦纶、氨纶、丙纶或氯纶其中的一种。
3.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述亲肤层(2)为打孔无纺布材质制成,所述打孔无纺布的材料为聚乳酸、聚丙烯、聚己内酯、聚对苯二甲酸乙二醇酯、聚对苯二甲酸丁二醇酯、聚对苯二甲酸丙二醇酯、聚乙烯-醋酸乙烯共聚物、聚烯烃共聚物或热酸性弹性体Vistamaxx中的一种或两种以上,所述打孔无纺布的孔径为0.5~1mm,具有均匀分散的圆形、菱形、正六边形或十字形孔。
4.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述3D缓冲层(3)为亲水纤维和聚酯纤维沿编织方向呈S型对称间隔循环阵列编织而成,所述亲水纤维为蚕丝、羊毛、兔毛、驼毛或棉其中的一种。
5.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述水凝胶层(4)即为所述步骤三中的海藻酸钠水凝胶。
6.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述海藻酸钠水凝胶的质量百分比如下:明胶0.1%-10%、结冷胶0.1%-10%、海藻酸钠0.1%-10%、聚乙烯醇1%-20%、转化生长因子TGF-β0.01%-0.05%,其余为蒸馏水。
7.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述加热层(6)与外表层(1)顶面之间通过后期贴附的方式相连接。
8.根据权利要求1所述的一种载药水凝胶复合织物用于创伤敷料的制备方法,其特征在于:所述步骤一、步骤二以及步骤三中的真空搅拌机的搅拌方式均采用磁力搅拌。
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CN112168494B (zh) * | 2020-09-27 | 2022-04-29 | 西安工程大学 | 一种3d间隔织物-气凝胶复合医用敷料及其制备方法 |
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